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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>圆角/盒子阴影</title>
    <style>
        div {
            width: 100px;
            height: 100px;
            background-color: aqua;
            border-radius: 0 20px 50%;
            margin: 100px auto;
        }
        div:hover {
            box-shadow: 5px 5px 10px 2px rgba(0, 0, 0, .3);
            text-shadow: 2px 2px 5px rgba(0, 0, 0, .3);;
        }
    </style>
</head>
<body>
    <div>12344小熊</div>
</body>
</html>